Zod Validation Utilities

This gives Claude production-ready patterns for Zod v4 validation in TypeScript projects. You get reusable schemas for common cases like emails, UUIDs, and pagination, plus solid examples of coercion, transforms, cross-field validation with refine, and discriminated unions. The safeParse workflow example is clean and shows proper error handling without throwing. React Hook Form integration via zodResolver is covered with correct type inference using z.input and z.output. Most useful when you're building API handlers or form validation and want consistent patterns across your codebase instead of reinventing schemas everywhere. Stays close to modern Zod idioms and skips the preprocessor rabbit holes.